..g., detecting potential for error), showed age-related increases in its sensitivity to the presence of competing color information. These findings are discussed in terms of newly emerging models of attentional control in the human brain...

Common and distinct neural substrates of attentional control in an integrated Simon and spatial Stroop task as assessed by event-related fMRI

..g., local) and irrelevant (e.g., global) levels differ within an individual stimulus. These findings indicate that interaction between the hemispheres is a neural mechanism that may aid selective attention...

Inhibitory control of memory retrieval and motor processing associated with the right lateral prefrontal cortex: evidence from deficits in individuals with ADHD

..These results suggest that inhibitory functions of rLPFC include control over both memory and motoric processes. They also suggest that inhibitory deficits in individuals with ADHD extend to the memory domain...

..Our data thus suggest a possible functional differentiation within the ACC. As such, it is unlikely that the role of the ACC in cognitive control will be able to be accommodated by a single unifying theory...

..Such a pattern is consistent with Kosslyn's suggestion that categorical processing is better suited for cells with small receptive fields and metric processing for cells with larger receptive fields...

..Analyses indicated that psychopathic offenders are not deficient in interhemispheric integration but provided additional evidence consistent with the left hemisphere activation hypothesis of psychopathy...

Responding to threat: hemispheric asymmetries and interhemispheric division of input

R J ComptonDepartment of Psychology and the Beckman Institute, University of Illinois at Urbana Champaign, USANeuropsychology 14:254-64. 2000

..Finally, participants with high levels of anxious apprehension were most likely to make use of this interhemispheric processing strategy, supporting a processing efficiency theory of cognitive function in anxiety...

..This study suggests that different forms of rumination are associated with different cognitive mechanisms and that both deficits may contribute to the perseveration that is associated with ruminative tendencies...

Cognitive control mechanisms, emotion and memory: a neural perspective with implications for psychopathology

..Results for both verbal (Experiment 1) and nonverbal (Experiment 2) items indicated that the facilitatory and inhibitory influences of cognitive control were larger for negative than neutral items...

Increased inhibition and enhancement of memory retrieval are associated with reduced hippocampal volume

..e. incongruent versus neutral trials), but not to the overlap in stimulus-response mappings. Therefore, this study indicates a functional differentiation for implementing attentional control within prefrontal cortex...

..These findings suggest that the brain may use interhemispheric interaction as a general strategy to increase computational resources, independent of sensory modality and the manner in which computational demands are increased...

Emotion-modulated performance and activity in left dorsolateral prefrontal cortex

..We find that IHI expands attentional capacity in the auditory system. This suggests that the benefits of requiring IHI derive from a functional increase in attentional capacity rather than the organization of a specific sensory modality...

..These findings support a current model of hemispheric interactions, which posits that an unequal hemispheric distribution of cognitive load allows the cerebral hemispheres to take the lead for different aspects of cognitive processing...